Medical Definition of Red blood cells. Red blood cells: The blood cells that carry oxygen. Red cells contain hemoglobin and it is the hemoglobin which permits them to transport oxygen (and carbon dioxide). Hemoglobin, aside from being a transport molecule, is a pigment. It gives the cells their red color (and their name).
Alexander Milne Calder (August 23, 1846 â June 4, 1923) was a Scottish American sculptor best known for the architectural sculpture of Philadelphia City Hall. Both his son, Alexander Stirling Calder, and grandson, Alexander Sandy Calder, became significant sculptors in the 20th century.
The young man. Alexander Graham Bell was born on March 3, 1847, in Edinburgh, Scotland. His father, Alexander Melville Bell, was an expert on the mechanics of the voice and on elocution (the art of public speaking).His grandfather, Alexander Bell, was an elocution professor.orn: March 3, 1847 Edinburgh, Scotland Died: August 2, 1922 Baddeck, Nova Scotia, Canada. Scottish-born American inventor. Alexander Graham Bell, Scottish-born American inventor and teacher of the deaf, is best known for perfecting the telephone to transmit, or send, vocal messages using electricity.